It's not hard, you just set it up like a regular card. One thing to keep in mind though is that you won't be able to automatically download your transactions, You can download them after you've received a statement from Goldman Sachs. To do this open your wallet app on your iPhone and tap the Apple card. Then tap your card's balance and then in the Balance Details tap on the statement at the bottom. Once you've opened the statement details, at the bottom you'll have options to download a PDF of the statement and export transactions. When you tap on export transactions you'll be given a choice of the file format to use, just use the Quicken Financial Exchange (QFX) and then import that into MoneyDance.